Francis Leavenworth discovered NGC 1906 = LM 1-148 on 12 Nov 1885 with the 26" refractor at the Leander McCormick Observatory. His rough position (nearest min of RA) is essentially correct (0.2 tmin too far east). Bigourdan measured an accurate position on 21 Feb 1889 as well as Howe in 1899-00 using the 20" refractor at Chamberlin Observatory (repeated in the IC 2 notes).

400/500mm - 17.5" (12/3/88): fairly faint, fairly small, oval 3:2 NW-SE, even surface brightness. A mag 12.5 star is just off the SE edge 1.6' from center.

Notes by Steve Gottlieb